The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2014
Filed:
Aug. 21, 2012
Anatoly Borisovich Grudinin, Hampshire, GB;
Dave Neil Payne, Hampshire, GB;
Paul William Turner, Hampshire, GB;
Lars Johan Albinsson Nilsson, Hampshire, GB;
Michael Nickolaos Zervas, Southampton, GB;
Morten Ibsen, Southampton, GB;
Michael Kevan Durkin, Worcestershire, GB;
Anatoly Borisovich Grudinin, Hampshire, GB;
Dave Neil Payne, Hampshire, GB;
Paul William Turner, Hampshire, GB;
Lars Johan Albinsson Nilsson, Hampshire, GB;
Michael Nickolaos Zervas, Southampton, GB;
Morten Ibsen, Southampton, GB;
Michael Kevan Durkin, Worcestershire, GB;
SPI Lasers UK Ltd, Southhampton, GB;
Abstract
An optical amplifier includes at least one pump source and an optical fiber cable which includes an amplifying optical fiber and a pump optical fiber that are defined by respective lengths. The amplifying optical fiber and the pump optical fiber are coated with a common coating along a portion of their respective lengths, and the fibers are in optical contact with each other along a coating length within the common coating. The common coating has a refractive index which is lower than a refractive index of a cladding material of the pump optical fiber. The fibers are made substantially from glass. The amplifying optical fiber includes a core and a cladding, and is doped with a rare earth dopant. The pump optical fiber is defined by a first end and a second end, the first end of the pump optical fiber being connected to the pump source.